DRM rules the digital world in which we now live thanks to piracy.
I'm pretty sure it's not just piracy, I'd bet money another fact is they don't like people sharing their games, they want the person to buy it themselves, no matter if they like it or not. Piracy is a problem, but I don't believe it's the only reason.
Sometimes the electricity goes out.
My internet is 50x more unstable then my electricity.
I can count on my light coming on everytime I flip the wall switch. (As long as i pay my bill) The only time it's ever gone out, is when a Major storm hits and causes severe damage to the cities lines and knocks out entire neighborhoods. I use spiral lights now so they rarely die out.
I can't count on chrome coming up to my email every time I open it because my internet maybe slow, down, or otherwise having a problem for a dozen reasons or more. It can be rain, shine, tidal wave, whatever, and my internet will be down on sunny days and working fine on rainy days or stormy days.
The mobile reception in the area I live in is spotty and unreliable. I will not buy a mobile phone.
If mobile reception in your area was poor and unreliable, then no you likely wouldn't buy a cell phone. Why would you buy something that doesn't work for you? You'd buy a landline so you can ensure it works.
This argument also works for always on games, like Diablo 3 and simcity. Hence half of why I didn't buy them.
The other half is I don't buy always-on DRM single player titles on a fact of principle, MMO's are a different classification, much like if I buy Tribes, I'm expecting to be online, I buy an MMO expecting to be online, but I also expect it will work.
I'm not expecting to be online when I build a city, or slay a monster in Diablo III. They make you obviously. So till they remove it, I'll keep not buying those titles, and stay with Diablo II, Titan's quest (Quite good actually), and older Simcity games, untill I can pay for Cities XL.
By extension, if my console requires always on, why would I want to buy it to be forced to be connected when i don't need to be? That's just burning power, plus, if it auto-updates all my games and consoles OS, how do i save myself from being unable to play incase that update breaks the game entirely? Or renders my console unusable? (Pretty sure a few 360 updates did that)
I want to be able to decide, not be told.
Even though my Vita, or PS3 often require updates to run each game, I can check online to make sure said update isn't breaking or bricking everything before I do, I have a choice.
It sounds as if the next xbox system doesn't give you any choices (Much like their stance on metro) You do it their way, or you gtfo apparently.